Microstructure characterization and corrosion behaviour of a nanohydroxyapatite coating deposited on AZ31 magnesium

Microstructure characterization and corrosion behaviour of a nanohydroxyapatite coating deposited on AZ31 magnesium

Dettagli Bibliografici
Parent link:Vacuum
Vol. 117.— 2015.— [P. 60–62]
Autore principale: Surmeneva M. A. Maria Alexandrovna
Ente Autore: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра теоретической и экспериментальной физики (ТиЭФ) Центр технологий (ЦТ)
Altri autori: Surmenev R. A. Roman Anatolievich
Riassunto:Title screen
The present study reports the fabrication of a nano-hydroxyapatite (HA) film on an AZ31 magnesium alloy via radio frequency (RF) magnetron sputtering. The phase composition, microstructure, and surface morphology of the HA coatings were investigated using X-ray diffraction and atomic force microscopy. The polarization tests in a 3.5 wt.% NaCl solution were performed to examine the corrosion behaviour of the HA-coated magnesium alloy. Two HA coating thicknesses of 700 nm and 1500 nm were studied. The coatings homogeneously covered the entire surface of the substrates. In the case of a greater coating thickness, larger crystallites were formed. The potentiodynamic polarization test demonstrated that a 1500-nm thick nanocrystalline HA coating significantly improved the corrosion resistance of the bare AZ31 magnesium alloy.
Режим доступа: по договору с организацией-держателем ресурса
Lingua:inglese
Pubblicazione: 2015
Soggetti:
электронный ресурс
труды учёных ТПУ
Hydroxyapatite coating
Magnesium alloy
Magnetron sputtering
Corrosion resistance
Accesso online:http://dx.doi.org/10.1016/j.vacuum.2015.04.004
Natura: Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=640725

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